Class II Biosafety cabinet – Type B2

  • Aeromech™ Class II Type B2 cabinet all inflow and downflow air is exhausted after HEPA filtration to the external environment without recirculation within the cabinet. Type B2 cabinets are suitable for work with toxic chemicals employed as an adjunct to microbiological processes under all circumstances since no re-circulation occurs. In theory, Type B2 cabinets may be considered to be the safest of all Class II biological safety cabinets since the total exhaust feature acts as a fail-safe in the event that the downflow and / or exhaust HEPA filtration systems cease to function normally. However, Class II Type B2 cabinets are, in practice,difficult to install, balance and maintain.
1 Product Class II  Bio safety Cabinet –Type B2
2 Air balancing 0% recirculation.100% exhaust
3 Protection  Product & Personnel & Environmental protection
4 Bio safety Level Bio safety Level 1 , 2 & 3
5 Exhaust Duct Requirement Hard Duct Only
6 Control Plenum surrounded by Negative Plenum
7 Cleanliness level ISO class 5 as per ISO 14644-1
8 Average Airflow Inflow Velocity -  Minimum 0.45 m/s ( 90 FPM) at 8” front opening
Velocity Down Velocity -  0.30 m/s ( 65 FPM)
9 Noise level 60 db on A scale
10 Light Intensity Minimum 900 lux inside the working area at ambient zero
11 MOC Main Body -  Galvanized Iron with PU coated / Stainless Steel – Satin Finish
Working Area -  Stainless Steel IS 304 Grade Satin Finish
12 Supply Filter HEPA Filter having EU 13 rating with suitable size.
Efficiency 99.99% down to 0.3 Microns.
13 Exhaust Filter HEPA Filter having EU 13 rating with suitable size.
Efficiency 99.99% down to 0.3 Microns.
14 Pre Filter Aeromech® make, EU 4 rating with suitable size.
Efficiency 90% down to 10 Microns.
15 Noise Level Less than 70 db 'A'.
16 Vibration Level Minimum.
17  Differential Pressure Gauge Magnehelic Gauge - 01 No. (make : Dwyer, USA) with each unit 
(To measure differential pressure across the supply HEPA filter).
 Motor Blower Assembly Statically & Dynamically balanced with suitable rating and size.
18 Supply & Exhaust (Induction motor with centrifugal blower) A Mounting unique spring suspension system to take care of vibration and noise.
19  3 Pins Switch & Socket 15 AMPS - 1 set in each unit.
20 Other Switches On/Off switches for motor blower & CFL lights.
21  Microprocessor Control Airflow display and UV Interlocking and Low airflow Alarm and Supply  & Exhaust filter Fail

Aeromech™ make Biosafety Cabinets are designed for the safe handling of cytotoxic agents and other hazardous drugs in Pharmacy and Oncology settings. This biosafety chamber eliminates cross-contamination and accidental release of pathogenic microorganisms or carcinogenic aerosols to the outside environment.

Other applications include handling materials PS such as powders and allergens. The work area is bathed with a HEPA-filtered unidirectional (laminar) flow ISO 5/Class 100 air to protect the product Further, the exhaust air This Class Il, Type B2 Biological Safety Cabinet is a 100% Total Exhaust unit. The Exhaust must be ducted (vented) to the outside of the building as there is absolutely no recirculation of air in the cabinet. This total exhaust feature makes the B2 hood suitable for not only handling particulates, but also fumes and gases.